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Capital Management - Additional Information (Detail)	May 07, 2015
Capital Management [Line Items]
Proportion of ownership interests	5.00%

X

- Definition

Capital management.

+ References

No definition available.

+ Details

Name:	eqx_CapitalManagementLineItems
Namespace Prefix:	eqx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of voting equity interests held

+ References

No definition available.

+ Details

Name:	eqx_PercentageOfVotingEquityInterestsHeld
Namespace Prefix:	eqx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant